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公开(公告)号：US11215600B2
公开(公告)日：2022-01-04
申请号：US17059295
申请日：2019-03-28
发明人： Guy Monfort , Genevieve Moreas , Olivier Herbiet
IPC分类号： G01N33/2028 , C21D9/56 , C21D9/573 , C21D11/00 , G01N27/72
摘要： A method for electromagnetic and real-time measurement of a percentage of austenite contained in a steel strip in continuous motion during in-line manufacture or transformation thereof, by a device including the steel strip and a measuring device including at least: an alternating-current generator; a first coil supplied by the alternating-current generator, called a transmitting coil, and a second coil, called a receiving coil, the first and second coils being arranged parallel to each other or coaxial and on both sides of the steel strip, a distance between the coils being fixed and between 10 and 200 mm; a core of ferromagnetic material being a center of each coil, respectively; and at least one voltage-measuring device connected to terminals of the receiving coil, being a multimeter or an electronic acquisition system having an analog-digital converter coupled to a computer, to obtain the percentage of austenite contained in the steel strip.
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公开(公告)号：US20210164957A1
公开(公告)日：2021-06-03
申请号：US17059295
申请日：2019-03-28
发明人： Guy Monfort , Genevieve Moreas , Olivier Herbiet
IPC分类号： G01N33/2028 , C21D9/56 , C21D11/00 , C21D9/573 , G01N27/72
摘要： The present invention relates to a device for electromagnetically measuring, in real time, the percentage of austenite contained in a continuously running steel strip during an in-line process for manufacturing or transforming the latter, such that the magnetic field produced by the alternating current flowing through the emitter coil (1) produces, in the steel strip (5), induced currents that generate an induced magnetic field creating, in the receiver coil (2), an electromotive force that can be measured by the voltage measurement device (4), the amplitude of this electromotive force being dependent on the voltage applied to the emitter coil and on the nature of the steel in the strip (5). The device is characterized in that the first and second coils (1, 2) are arranged in parallel to one another with a set distance between them and, in use, on either side of the steel strip (5).
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